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Finding the Fourth Proportional to 12,331,355.20, 17,292,240.80 and 12,331,355.20

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Solution

The fourth proportional to 12,331,355.20, 17,292,240.80 and 12,331,355.20 is: 17,292,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331,355.20 : 17,292,240.80 = 12,331,355.20 : x
  2. Step 2: Convert to fraction form
    12,331,355.20/17,292,240.80 = 12,331,355.20/x
  3. Step 3: Cross multiply
    12,331,355.20x = 17,292,240.80 × 12,331,355.20
  4. Step 4: Simplify right side
    12,331,355.20x = 213,236,763,508,732.16
  5. Step 5: Solve for x
    x = 213,236,763,508,732.16/12,331,355.20
  6. Step 6: Final answer
    x = 17,292,240.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.